Add a -local option to the "date" TH1 command. This allows a custom
ticket-edit script to use localtime instead of UTC for the date stamp
for when a comment is added. Also modify the default ticket-edit script
to show UTC after the date stamp, to avoid ambiguity.
Ticket [5c1490e26b8b2f8].
check-in: e0762527 user: drh tags: trunk